← Back to dex
Rare star 41 EP

HD 64351

RA 118.5554° · Dec 21.1053° · star

Loading sky survey…
🌌 View in 3D star map
Tonight’s visibility

Computing the sky for your location…

Score breakdown

· 7 badges
41 pts · Rare
Rare 50 pts → Epic
  • Intrinsically luminous (Mv < −2) +10
  • Deep red star +8
  • Distant (over 1,000 light-years) +6
  • Giant star +6
  • Cool red M-type star +5
  • Star +3
  • On the zodiac +3
Total score 41

9 more points to reach Epic.

Badges

  • Star · +3
  • Distant (over 1,000 light-years) · +6
  • On the zodiac · +3
  • Cool red M-type star · +5
  • Giant star · +6
  • Deep red star · +8
  • Intrinsically luminous (Mv < −2) · +10

Trivia

What it actually is

  • Spectral class. Its spectrum reads M1III: — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
  • Where it is in life. It is a giant. It has already exhausted its core hydrogen and swollen up enormously in response.

Sense of scale

  • In perspective. Far away by human standards, yet still a local address inside the Milky Way's spiral arms.

Find it in the sky

  • How to spot it. At magnitude 6.8 it is just past naked-eye reach — ordinary binoculars will pull it in, over in Gemini.
  • Northern sky. It rides the northern half of the sky — an easier target the further north you are.
  • Best time of year. It stands highest in the middle of the night around January — that's when to go looking.

Could we get there?

  • Verdict. Impossible with our current technology — and the next millennium of it.

Getting there

  • Aboard Voyager 1. ≈ 36 million years at Voyager 1's speed (17 km/s).

Properties

absmag
-2.153
bv
1.663
constellation
Gem
dist ly
2051.2955
luminosity
632.7032
mag
6.84
name
HD 64351
spect
M1III:

About HD 64351

HD 64351 is a rare star. It lies about 2,051.3 light-years from Earth, sits in the constellation Gem, shines at apparent magnitude 6.84 and has spectral type M1III:.

Its spectrum reads M1III: — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.

How to see it

Look for HD 64351 in the constellation Gem. At apparent magnitude 6.84, it is an easy target for binoculars.

Like any astronomical target, HD 64351 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why HD 64351 is a rare star

HD 64351 scores 41 points on Spacedle's rarity scale, which places it in the rare tier. Another 9 points would lift it into a rarer tier.

That score comes from 7 science badges — Star, Distant (over 1,000 light-years), On the zodiac, Cool red M-type star, Giant star, Deep red star and Intrinsically luminous (Mv < −2) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.